Pipe-coupling.



Patented May 28, |9Dl,

C. W. MEADOWCBDFT.

PIPE COUPLING.

(Application filed Apr. 13, 1900. J

(No Model.)

UNiTnb STATES PATENT CHARLES WV. MEADOWCROFT, OF PHILADELPHIA,PENNSYLVANIA.

PIPE-COUPLING.

SPECIFICATION formingpart of Letters Patent N o. 674,935, dated May 28,1901. Application filed April 13, 1900. Serial No. 12,746. (No model.)

T0 @ZZ whom, it may' concern:

Be it known that I, CHARLES W. MEADOW- OROFT, a citizen of the UnitedStates, residing at Philadelphia, in the county of Philadelphia andState of Pennsylvania, have invented certain new and useful Improvementsin Pipe-Couplings, of which the following is a specification.

My invention relates to new and useful improvements in couplings orjoints for metallic pipes or tubes; and my primary object is to providea device of simple construction and inexpensive in manufacture which maybe easily connected, is capable of withstanding high pressure, and whichaccomplishes a tight joint without necessitating` the use of bushing,packing, dac.

To these ends my improvement consists in the novel construction andcombination of parts hereinafter fully described and claimed, andillustrated in the accompanying drawings, in which- Figure 1 is anelevation of one member of my improved coupling, showing the ou ter facethereof. Fig. 2 is an axial section of the pipecoupling. Fig. 3 is anelevation of the other member of the pipe-coupling, showing the outerface thereof.

l and 8 are the two members of my coupling. One member, 1, is formedwitha screwthreaded pipe-opening 2, a concave or flaring socket 3, anannular shoulder 4, intermediate of the screw-threaded pipe-opening andthe concave or daring socket, bolt-holes 5, and a circularstrengthening-rib 6, surrounding the screw-threaded pipe-opening, andcircular strengthening-ribs 7, surrounding the boltholes on the outerface of the member. The other member, 8, is formed with a screwthreadedpipe-opening 9, a convex or rounded head 10, fitting in the concave orflaring socket, an annular shoulder 11, intermediate 0f thescrew-threaded pipe-opening 9 and the convex or rounded head 10,bolt-holes12, and a circular rib 13, surrounding the screwthreadedpipe-opening 9, and parallel radial strengthening-ribs 14 on the outerface of this member 8, the parallel radial ribs 13, in connection withthe straight outer Walls 15 of the circular rib, providing squaredsockets 16 for the squared heads 17 of the bolts 18, having nuts 19,whereby the members of the pipe-coupling are drawn together. The innerfaces of the members 1 and 8 may be inclined, as indicated by dottedlines 20.

Having thus described my invention, the following is what I claim as newtherein and desire to secure by Letters Patent:

A pipe-coupling comprising two members; one member being formed with ascrewthreaded pipe-opening, a concave socket, an annular shoulderintermediate ofthe screwthreaded pipe-openingand the concave socket,bolt-holes, and a circular strengthening-rib surroundingthescrew-threaded pipe-opening, and circular strengthening-ribs surroundingthe bolt-holes on the outer face of the member, and the othermemberbeing formed with ascrew-threaded pipe-opening, aconvex headfitting in the concave socket, an annular shoulder intermediate of thescrew-threaded pipe-opening and the convex head, bolt-holes andacircular strengthening-rib surrounding the screw-threaded pipe-openingand parallel radial strengthening-ribs on the outer face of the member,the parallel radial ribs in connection with the straight outer Walls ofthe circular rib providing squared sockets for the squared heads of thebolts having nuts Whereloy the members are drawn together.

In testimony whereof I affix my signature in presence of two Witnesses.

CHARLES W. MEADOWCROFT. Witnesses:

ALLAN J. OnssIDY, 4 CHARLES WM. MEADowcRoF'r, Jr.

